Showing 1–50 of 1,394 inventors

Rank Inventor Primary Company Patents
1 Kenichi Nagasawa Canon 135
2 Takashi Sohda Takeda Chemical Industries 94
3 Yoshiyuki Sasaki Ricoh Company 75
#4 Mamoru Takeda Sumitomo Electric Industries 74
#5 Hideshi Ishihara Sumitomo Electric Industries 69
#6 Nobuhiro Usui Sumitomo Chemical 60
#7 Yoshihisa Nagano Panasonic 58
#8 Nobuyuki Tomihashi Daikin Industries 56
#9 Yasutaka Ishii Daicel Chemical Industries 54
#10 Yasushi Nishikawa Kaneka 52
#11 Masayuki Hagi Ricoh Company 49
#12 Makoto Takada Seiko Epson 43
#13 Shiro Kanao 42
#14 Hiroyuki Kawakami Hitachi Chemical Company 40
#15 Youichi Shiokawa Fujisawa Pharmaceutical Co. 38
#15 Yasushige Tomiyoshi Panasonic 38
#17 Shigeo Uetake Konica Minolta 37
#18 Kazuhide Togai Mitsubishi Motors 34
#19 Giichi Goto Takeda Chemical Industries 33
#20 Tsuyoshi Ichibakase Sumitomo Electric Industries 30
#21 Yukinori Kuwano Sanyo Electric Co. 29
#22 Satoshi Okada Fujisawa Pharmaceutical Co. 28
#22 Toshihiro Ohnishi Sumitomo Chemical 28
#24 Masaru Ishino Sumitomo Chemical 27
#24 Yoshiaki Isobe Dainippon Sumitomo Pharma Co. 27
#26 Miyoshi Okamoto Toray Industries 26
#26 Junji Hayakawa Denso 26
#28 Katsunori Moritoki Sumitomo Electric Industries 25
#28 Ryuzo Nishiyama Ishihara Sangyo Kaisha 25
#28 Takashi Inaba Japan Tobacco 25
#31 Yukio Yoneyoshi Sumitomo Chemical 24
#31 Takezo Sano Sumitomo Chemical 24
#31 Kenichi Yokoyama Denso 24
#34 Mitsuko Asai Takeda Chemical Industries 23
#34 Hisao Nakai Ono Pharmaceutical Co. 23
#34 Makoto Shibata Suntory Holdings Limited 23
#34 Yohnosuke Ohsaka Daikin Industries 23
#34 Masahiko Inamori Sumitomo Electric Industries 23
#34 Yuichiro Masuda Funai Electric Co. 23
#40 Keiji Matsuda Fujisawa Pharmaceutical Co. 22
#40 Osamu Sugihara Hoya 22
#40 Syunsuke Ono Panasonic 22
#40 Tatsuo Otsuki Sumitomo Electric Industries 22
#44 Ichiro Kawakami Nippon Paint Holdings Co. 21
#44 Masaaki Tahara Daidousanso Co. 21
#44 Eiro Fujii Minolta Co. 21
#47 Hiroshi Takida Nippon Gohsei Kagaku Kogyo 20
#47 Yukinori Wada Ube Industries 20
#47 Takashi Takata Panasonic 20
#47 Shigeaki Tokutake Konica Minolta 20